:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light;
  
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  /* 允许触摸滚动，但禁用其他手势 */
  touch-action: pan-y;
  overscroll-behavior: contain;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

/* 按钮样式由 apple-theme.css 统一管理 */
